Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

The long-distance behavior of the vector correlator from pi-pi scattering at the physical point.

Aug 12, 2022, 3:10 PM
20m
CP1-HSZ/1st-1.004 - HS7 (CP1-HSZ)

CP1-HSZ/1st-1.004 - HS7

CP1-HSZ

70
Oral Presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Srijit Paul (Johannes Gutenberg University Mainz)

Description

We present the finite volume contributions to the long distance behavior of the vector correlator, which is dominated by the two-pion scattering states in the I = 1 channel. The finite volume spectroscopy calculations have been performed using the (stochastic) distillation framework on the physical point Nf = 2 + 1 CLS ensemble. We also compute the timelike pion form factor to reconstruct the long distance part of the vector correlator. The reconstructions improve the lattice estimates of hadronic vacuum polarization contribution to the muon anomalous magnetic moment.

Primary author

Srijit Paul (Johannes Gutenberg University Mainz)

Co-authors

Colin Morningstar (Carnegie Mellon) Andrew Hanlon (BNL) Hartmut Wittig Dr Ben Hoerz Daniel Mohler (TU Darmstadt)

Presentation materials